import mongoose from "mongoose";
import { DB_URL } from "../config/index";
mongoose.Promise = require("bluebird");

// 连接
mongoose.connect(DB_URL, {
  useNewUrlParser: true,
  useUnifiedTopology: true,
});

// 连接成功
mongoose.connection.on("connected", function () {
  console.log("Mongoose connection open to ", DB_URL);
});

// 连接异常
mongoose.connection.on("error", function (err) {
  console.log("Mongoose connection error: " + err);
});

// 断开连接
mongoose.connection.on("disconnected", function () {
  console.log("Mongoose connection disconnected");
});

export default mongoose;
